Looking to get new tires for my ~87' Peugeot Orient Express. Hoping for a gravel but there's a lot more options in 26" going with MTB tires. Aside from measuring the width of the fork and chain/seat stays where the tire sits, are there are any other considerations for how big a tire I can use? Hoping to go with something pretty chunky in the 2"+ range - any issues with bigger tires and the old stock aluminum rims?
Thanks!